To begin, log into the Gandi handle listed as either the owner contact or the administrative contact of the domain name that you want to modify.
You can then proceed to select the domain name(s) for which you want to change the owner. This can be done either for just one domain or for multiple domains, using the batch change feature (see below).
From your list of domains, click on the domain whose owner is to be changed. This will bring you to the domain's control panel, where you will see the “Owner” contact of the domain towards the bottom of the page:
To initiate the ownership change process, click on the “Change owner” link.
Proceed to the next step: Confirming your intent to change the owner
To change the owner of multiple domains at once, select the domains for which you want to change the owner by ticking the checkbox to the left of the domains
Then select “Ownership change” in the dropdown menu on the bottom of the page.
Proceed to the next step: Confirming your intent to change the owner